Ageratum, Floss Flower, Flossflower
Ageratumhoustonianum 'Hawaii Royal'

Family: Asteraceae (ass-ter-AY-see-ee)
Genus: Ageratum (ad-jur-RAY-tum)
Species: houstonianum (hoos-toh-nee-AH-num)
Cultivar: Hawaii Royal

Category
Annuals

Water Requirements
Average Water Needs; Water regularly; do not overwater

Sun Exposure
Sun to Partial Shade

Foliage
Herbaceous

Foliage Color

Height
6-12 in. (15-30 cm)

Spacing
3-6 in. (7-15 cm)

Hardiness
Not Applicable

Where to Grow
Can be grown as an annual

Danger

Bloom Color
Blue-Violet

Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds

Bloom Size

Bloom Time
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall
Late Fall/Early Winter

Other details

Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information

Propagation Methods
From seed; direct sow after last frost
Self-sows freely; deadhead if you do not want volunteer seedlings next season

Seed Collecting